Hour from date picker is wrong

Hey everybody,

Usually, the date picker specifies a timestamp of the selected date and the same hour the date picker was selected.
But on my NR on a virtual machine (Windows 10), the hour is set in the timestamp (for example, 15:01) and the next day is (12:10). My server time is not the problem. But I can not see a pattern, in terms of different times, as this changes undefined.